Question

A quadratic equation has a discriminant of 12. Which could be the equation?

0 = –x2 + 8x + 2
0 = 2x2 + 6x + 3
0 = –x2 + 4x + 1
0 = 4x2 + 2x + 1

Answer 1

2x² + 6x + 3 = 0

Explanation:

2x² + 6x + 3 = 0

where

a = 2

b = 6

c = 3

Discriminant:

D = b² - 4ac

= (6)² - 4(2)(3)

= 36 - 24

= 12

The Answer Is

2x² + 6x + 3 = 0